Printable Test Catalog - OU Medicine

TURNAROUND TIME: 2-4 Days
METHODOLOGY: Electrochemiluminescent Immunoassay
CPT: 84443
[TSI] Thyroid Stimulating Immunoglobulin
SPECIMEN REQUIRED: Refrigerated serum
TUBE OR CONTAINER: Red or Gold
SPECIAL HANDLING: Centrifuge and separate cells within 2 hours
of collection
SPECIMEN VOLUME: 3 mL
MINIMUM VOLUME: 0.3 mL (this volume does not allow for repeat
testing)
TEST AVAILABILITY: Daily
REFERENCE RANGE: < 130% normal
OTHER NAMES: Human Thyroid Stimulator (HTS); Long-Acting
Thyroid Stimulator (LATS); Thyroid-Stimulating
Antibody (TSAb); TSI
METHODOLOGY: Chinese hamster ovary cell line transfected with
both the thyrotropin receptor and a luciferase
reporter gene
CLINICAL USE: Detected in the majority of patients (77.8%) with
Graves' disease; also associated with a small
portion (15.9%) of patients with toxic multinodular
goiter
CPT: 84445
[TT] THROMBIN TIME
SPECIMEN REQUIRED: Frozen plasma
TUBE OR CONTAINER: Blue (Citrate)
SPECIAL HANDLING: Draw 1 FULL citrate tube; tube must be filled
to the fill line to ensure proper anticoagulant
to blood ratio; Invert gently 3-4
times to prevent clotting
Send to lab immediately or centrifuge and
freeze plasma
SPECIMEN VOLUME: 1 full tube
Testing volume: 2 mL of PLASMA
MINIMUM VOLUME: 1 full tube
Testing volume: 1 mL of PLASMA
TEST AVAILABILITY: Daily
TURNAROUND TIME: 2-3 days
REFERENCE RANGE: 0.0 20.0 seconds
OTHER NAMES: Thrombin Clotting Time (TCT); TT
METHODOLOGY: Clot detection (Photometric)
CLINICAL USE: Determine severe hypofibrinogenemia, dysfibrinogenemia,
and the presence of heparin-like
anticoagulants; diagnose and monitor disseminated
intravascular coagulation (DIC) and fibrinolysis;
monitor fibrinolytic therapy
CPT: 85670